Josh Marshall, who possesses a PhD in colonial American history from Brown University, has climbed from blogger to MSM columnist.

Marshall is the liberal behind TalkingPointsMemo.com, a widely read political blog. He also blogs at TPM Cafe.

Now he'll be writing a column for Time Magazine. His columns will appear on a regular basis (but on no set schedule) on the web. His first Time column,"Toying With Terror Alerts?" appeared on July 7.

Marshall has actually been writing for the MSM for years. His pieces have appeared in the NYT, the Atlantic, and Foreign Affairs.